Analysis

  • max time kernel
    151s
  • max time network
    152s
  • platform
    windows10_x64
  • resource
    win10-en-20211208
  • submitted
    15/01/2022, 04:19

General

  • Target

    96021e4b25c1c2a93a2f77e7afd858aebacbcedcd30e71ea8a0fca5c4b0a09fc.exe

  • Size

    318KB

  • MD5

    a19a55cf1683356ab4555f595e85d030

  • SHA1

    2770a0695ff3004a2a8e15e7d17229ea18445b6b

  • SHA256

    96021e4b25c1c2a93a2f77e7afd858aebacbcedcd30e71ea8a0fca5c4b0a09fc

  • SHA512

    d9c0e3b057c1121f6f2c25dd12f701eec2a03a61cabdffb52ee2e9e951721ce23d6972887ebfef133dc00db6297330c32101552207543abe62f90a6971f0eda1

Malware Config

Extracted

Family

smokeloader

Version

2020

C2

http://host-data-coin-11.com/

http://file-coin-host-12.com/

http://srtuiyhuali.at/

http://fufuiloirtu.com/

http://amogohuigotuli.at/

http://novohudosovu.com/

http://brutuilionust.com/

http://bubushkalioua.com/

http://dumuilistrati.at/

http://verboliatsiaeeees.com/

rc4.i32
rc4.i32
rc4.i32
rc4.i32

Extracted

Family

arkei

Botnet

Default

C2

http://file-file-host4.com/tratata.php

Extracted

Family

tofsee

C2

patmushta.info

parubey.info

Signatures

  • Arkei

    Arkei is an infostealer written in C++.

  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Suspicious use of NtCreateProcessExOtherParentProcess 1 IoCs
  • Tofsee

    Backdoor/botnet which carries out malicious activities based on commands from a C2 server.

  • Windows security bypass 2 TTPs
  • xmrig

    XMRig is a high performance, open source, cross platform CPU/GPU miner.

  • Arkei Stealer Payload 2 IoCs
  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs
  • XMRig Miner Payload 3 IoCs
  • Creates new service(s) 1 TTPs
  • Downloads MZ/PE file
  • Executes dropped EXE 14 IoCs
  • Modifies Windows Firewall 1 TTPs
  • Sets service image path in registry 2 TTPs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Deletes itself 1 IoCs
  • Loads dropped DLL 18 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Looks up external IP address via web service 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Drops file in System32 directory 2 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Suspicious use of SetThreadContext 4 IoCs
  • Launches sc.exe

    Sc.exe is a Windows utlilty to control services on the system.

  • Detects Pyinstaller 3 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Program crash 3 IoCs
  • Checks SCSI registry key(s) 3 TTPs 6 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Delays execution with timeout.exe 1 IoCs
  • Modifies data under HKEY_USERS 14 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\96021e4b25c1c2a93a2f77e7afd858aebacbcedcd30e71ea8a0fca5c4b0a09fc.exe
    "C:\Users\Admin\AppData\Local\Temp\96021e4b25c1c2a93a2f77e7afd858aebacbcedcd30e71ea8a0fca5c4b0a09fc.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:712
    • C:\Users\Admin\AppData\Local\Temp\96021e4b25c1c2a93a2f77e7afd858aebacbcedcd30e71ea8a0fca5c4b0a09fc.exe
      "C:\Users\Admin\AppData\Local\Temp\96021e4b25c1c2a93a2f77e7afd858aebacbcedcd30e71ea8a0fca5c4b0a09fc.exe"
      2⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:4072
  • C:\Users\Admin\AppData\Local\Temp\74AF.exe
    C:\Users\Admin\AppData\Local\Temp\74AF.exe
    1⤵
    • Executes dropped EXE
    • Checks SCSI registry key(s)
    • Suspicious behavior: MapViewOfSection
    PID:1264
  • C:\Users\Admin\AppData\Local\Temp\7E35.exe
    C:\Users\Admin\AppData\Local\Temp\7E35.exe
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    • Checks processor information in registry
    • Suspicious use of WriteProcessMemory
    PID:2444
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c timeout /t 5 & del /f /q "C:\Users\Admin\AppData\Local\Temp\7E35.exe" & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3184
      • C:\Windows\SysWOW64\timeout.exe
        timeout /t 5
        3⤵
        • Delays execution with timeout.exe
        PID:2332
  • C:\Users\Admin\AppData\Local\Temp\81D0.exe
    C:\Users\Admin\AppData\Local\Temp\81D0.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of WriteProcessMemory
    PID:436
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\jryfxawe\
      2⤵
        PID:676
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\biziwibs.exe" C:\Windows\SysWOW64\jryfxawe\
        2⤵
          PID:3288
        • C:\Windows\SysWOW64\sc.exe
          "C:\Windows\System32\sc.exe" create jryfxawe binPath= "C:\Windows\SysWOW64\jryfxawe\biziwibs.exe /d\"C:\Users\Admin\AppData\Local\Temp\81D0.exe\"" type= own start= auto DisplayName= "wifi support"
          2⤵
            PID:2924
          • C:\Windows\SysWOW64\sc.exe
            "C:\Windows\System32\sc.exe" description jryfxawe "wifi internet conection"
            2⤵
              PID:1876
            • C:\Windows\SysWOW64\sc.exe
              "C:\Windows\System32\sc.exe" start jryfxawe
              2⤵
                PID:1276
              • C:\Windows\SysWOW64\netsh.exe
                "C:\Windows\System32\netsh.exe" advfirewall firewall add rule name="Host-process for services of Windows" dir=in action=allow program="C:\Windows\SysWOW64\svchost.exe" enable=yes>nul
                2⤵
                  PID:1512
              • C:\Users\Admin\AppData\Local\Temp\83F4.exe
                C:\Users\Admin\AppData\Local\Temp\83F4.exe
                1⤵
                • Executes dropped EXE
                • Suspicious use of SetThreadContext
                • Suspicious use of AdjustPrivilegeToken
                • Suspicious use of WriteProcessMemory
                PID:1644
                • C:\Users\Admin\AppData\Local\Temp\83F4.exe
                  C:\Users\Admin\AppData\Local\Temp\83F4.exe
                  2⤵
                  • Executes dropped EXE
                  • Suspicious use of AdjustPrivilegeToken
                  PID:1616
              • C:\Windows\SysWOW64\jryfxawe\biziwibs.exe
                C:\Windows\SysWOW64\jryfxawe\biziwibs.exe /d"C:\Users\Admin\AppData\Local\Temp\81D0.exe"
                1⤵
                • Executes dropped EXE
                • Suspicious use of SetThreadContext
                • Suspicious use of WriteProcessMemory
                PID:1060
                • C:\Windows\SysWOW64\svchost.exe
                  svchost.exe
                  2⤵
                  • Drops file in System32 directory
                  • Suspicious use of SetThreadContext
                  • Modifies data under HKEY_USERS
                  • Suspicious use of WriteProcessMemory
                  PID:2424
                  • C:\Windows\SysWOW64\svchost.exe
                    svchost.exe -o fastpool.xyz:10060 -u 9rLbTvsApFs3i3ojk5hDKicMNRQbxxFGwJA2hNC6NoZZDQN5tTFbhviFm4W3koxSrPg87Lnif7qxFYh9xpTJz1cT6B17Ph4.50000 -p x -k -a cn/half
                    3⤵
                    • Suspicious use of AdjustPrivilegeToken
                    PID:2948
              • C:\Users\Admin\AppData\Local\Temp\EFAF.exe
                C:\Users\Admin\AppData\Local\Temp\EFAF.exe
                1⤵
                • Executes dropped EXE
                PID:3772
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -u -p 3772 -s 400
                  2⤵
                  • Program crash
                  • Suspicious use of AdjustPrivilegeToken
                  PID:1988
              • C:\Windows\SysWOW64\explorer.exe
                C:\Windows\SysWOW64\explorer.exe
                1⤵
                • Accesses Microsoft Outlook profiles
                • outlook_office_path
                • outlook_win_path
                PID:3288
              • C:\Users\Admin\AppData\Local\Temp\F2CD.exe
                C:\Users\Admin\AppData\Local\Temp\F2CD.exe
                1⤵
                • Executes dropped EXE
                PID:1544
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -u -p 1544 -s 920
                  2⤵
                  • Suspicious use of NtCreateProcessExOtherParentProcess
                  • Program crash
                  PID:3924
              • C:\Windows\explorer.exe
                C:\Windows\explorer.exe
                1⤵
                  PID:1464
                • C:\Users\Admin\AppData\Local\Temp\F7C0.exe
                  C:\Users\Admin\AppData\Local\Temp\F7C0.exe
                  1⤵
                  • Executes dropped EXE
                  • Suspicious use of NtSetInformationThreadHideFromDebugger
                  PID:1688
                • C:\Users\Admin\AppData\Local\Temp\CA1.exe
                  C:\Users\Admin\AppData\Local\Temp\CA1.exe
                  1⤵
                  • Executes dropped EXE
                  PID:1512
                  • C:\Users\Admin\AppData\Local\Temp\CA1.exe
                    C:\Users\Admin\AppData\Local\Temp\CA1.exe
                    2⤵
                    • Executes dropped EXE
                    • Loads dropped DLL
                    PID:1516
                • C:\Users\Admin\AppData\Local\Temp\1358.exe
                  C:\Users\Admin\AppData\Local\Temp\1358.exe
                  1⤵
                  • Executes dropped EXE
                  • Suspicious use of AdjustPrivilegeToken
                  PID:1884
                • C:\Users\Admin\AppData\Local\Temp\29CF.exe
                  C:\Users\Admin\AppData\Local\Temp\29CF.exe
                  1⤵
                  • Executes dropped EXE
                  • Checks BIOS information in registry
                  • Checks whether UAC is enabled
                  • Suspicious use of AdjustPrivilegeToken
                  PID:1864
                • C:\Users\Admin\AppData\Local\Temp\44AB.exe
                  C:\Users\Admin\AppData\Local\Temp\44AB.exe
                  1⤵
                  • Executes dropped EXE
                  PID:3976
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -u -p 3976 -s 400
                    2⤵
                    • Program crash
                    PID:2792

                Network

                      MITRE ATT&CK Enterprise v6

                      Replay Monitor

                      Loading Replay Monitor...

                      Downloads

                      • memory/436-140-0x0000000000400000-0x000000000055F000-memory.dmp

                        Filesize

                        1.4MB

                      • memory/436-139-0x0000000000660000-0x00000000007AA000-memory.dmp

                        Filesize

                        1.3MB

                      • memory/712-115-0x000000000089A000-0x00000000008AA000-memory.dmp

                        Filesize

                        64KB

                      • memory/712-116-0x0000000000680000-0x0000000000689000-memory.dmp

                        Filesize

                        36KB

                      • memory/1060-156-0x00000000006F4000-0x0000000000705000-memory.dmp

                        Filesize

                        68KB

                      • memory/1060-163-0x0000000000400000-0x000000000055F000-memory.dmp

                        Filesize

                        1.4MB

                      • memory/1060-162-0x00000000001D0000-0x00000000001E3000-memory.dmp

                        Filesize

                        76KB

                      • memory/1264-125-0x0000000000400000-0x0000000000452000-memory.dmp

                        Filesize

                        328KB

                      • memory/1264-123-0x0000000000460000-0x00000000005AA000-memory.dmp

                        Filesize

                        1.3MB

                      • memory/1264-124-0x0000000000460000-0x00000000005AA000-memory.dmp

                        Filesize

                        1.3MB

                      • memory/1464-208-0x0000000000CC0000-0x0000000000CC7000-memory.dmp

                        Filesize

                        28KB

                      • memory/1464-210-0x0000000000CB0000-0x0000000000CBC000-memory.dmp

                        Filesize

                        48KB

                      • memory/1544-222-0x0000000002EF0000-0x0000000002F90000-memory.dmp

                        Filesize

                        640KB

                      • memory/1544-228-0x0000000000400000-0x0000000002BC5000-memory.dmp

                        Filesize

                        39.8MB

                      • memory/1544-235-0x0000000000400000-0x0000000002BC5000-memory.dmp

                        Filesize

                        39.8MB

                      • memory/1544-280-0x0000000000400000-0x0000000002BC5000-memory.dmp

                        Filesize

                        39.8MB

                      • memory/1544-225-0x0000000002F90000-0x0000000003050000-memory.dmp

                        Filesize

                        768KB

                      • memory/1544-283-0x0000000003190000-0x00000000031F8000-memory.dmp

                        Filesize

                        416KB

                      • memory/1544-291-0x0000000000400000-0x0000000002BC5000-memory.dmp

                        Filesize

                        39.8MB

                      • memory/1544-284-0x0000000004C30000-0x0000000004CC2000-memory.dmp

                        Filesize

                        584KB

                      • memory/1544-272-0x0000000000400000-0x0000000002BC5000-memory.dmp

                        Filesize

                        39.8MB

                      • memory/1544-239-0x0000000003080000-0x0000000003125000-memory.dmp

                        Filesize

                        660KB

                      • memory/1616-174-0x0000000005440000-0x000000000547E000-memory.dmp

                        Filesize

                        248KB

                      • memory/1616-173-0x00000000054D0000-0x00000000055DA000-memory.dmp

                        Filesize

                        1.0MB

                      • memory/1616-182-0x0000000006610000-0x0000000006B0E000-memory.dmp

                        Filesize

                        5.0MB

                      • memory/1616-192-0x0000000006EE0000-0x00000000070A2000-memory.dmp

                        Filesize

                        1.8MB

                      • memory/1616-193-0x00000000075E0000-0x0000000007B0C000-memory.dmp

                        Filesize

                        5.2MB

                      • memory/1616-183-0x0000000006200000-0x0000000006276000-memory.dmp

                        Filesize

                        472KB

                      • memory/1616-176-0x0000000005480000-0x00000000054CB000-memory.dmp

                        Filesize

                        300KB

                      • memory/1616-175-0x00000000052F0000-0x00000000058F6000-memory.dmp

                        Filesize

                        6.0MB

                      • memory/1616-181-0x0000000005750000-0x00000000057B6000-memory.dmp

                        Filesize

                        408KB

                      • memory/1616-171-0x00000000053A0000-0x00000000053B2000-memory.dmp

                        Filesize

                        72KB

                      • memory/1616-170-0x0000000005900000-0x0000000005F06000-memory.dmp

                        Filesize

                        6.0MB

                      • memory/1616-184-0x0000000006320000-0x00000000063B2000-memory.dmp

                        Filesize

                        584KB

                      • memory/1616-169-0x0000000000400000-0x0000000000420000-memory.dmp

                        Filesize

                        128KB

                      • memory/1616-185-0x00000000062C0000-0x00000000062DE000-memory.dmp

                        Filesize

                        120KB

                      • memory/1616-168-0x0000000000400000-0x0000000000420000-memory.dmp

                        Filesize

                        128KB

                      • memory/1616-164-0x0000000000400000-0x0000000000420000-memory.dmp

                        Filesize

                        128KB

                      • memory/1644-141-0x0000000000A40000-0x0000000000ACA000-memory.dmp

                        Filesize

                        552KB

                      • memory/1644-161-0x0000000005B50000-0x000000000604E000-memory.dmp

                        Filesize

                        5.0MB

                      • memory/1644-151-0x0000000001360000-0x0000000001361000-memory.dmp

                        Filesize

                        4KB

                      • memory/1644-148-0x0000000005330000-0x00000000053A6000-memory.dmp

                        Filesize

                        472KB

                      • memory/1644-142-0x0000000000A40000-0x0000000000ACA000-memory.dmp

                        Filesize

                        552KB

                      • memory/1644-150-0x0000000002DC0000-0x0000000002DC1000-memory.dmp

                        Filesize

                        4KB

                      • memory/1644-153-0x0000000002D40000-0x0000000002D5E000-memory.dmp

                        Filesize

                        120KB

                      • memory/1688-216-0x00000000011D0000-0x0000000001253000-memory.dmp

                        Filesize

                        524KB

                      • memory/1688-229-0x0000000003490000-0x00000000034DB000-memory.dmp

                        Filesize

                        300KB

                      • memory/1688-227-0x0000000074950000-0x0000000075C98000-memory.dmp

                        Filesize

                        19.3MB

                      • memory/1688-226-0x0000000076360000-0x00000000768E4000-memory.dmp

                        Filesize

                        5.5MB

                      • memory/1688-224-0x0000000003420000-0x000000000345E000-memory.dmp

                        Filesize

                        248KB

                      • memory/1688-223-0x0000000003480000-0x0000000003481000-memory.dmp

                        Filesize

                        4KB

                      • memory/1688-221-0x00000000056B0000-0x00000000057BA000-memory.dmp

                        Filesize

                        1.0MB

                      • memory/1688-220-0x00000000033C0000-0x00000000033D2000-memory.dmp

                        Filesize

                        72KB

                      • memory/1688-219-0x0000000005BB0000-0x00000000061B6000-memory.dmp

                        Filesize

                        6.0MB

                      • memory/1688-218-0x00000000735F0000-0x0000000073670000-memory.dmp

                        Filesize

                        512KB

                      • memory/1688-230-0x00000000736D0000-0x000000007371B000-memory.dmp

                        Filesize

                        300KB

                      • memory/1688-217-0x00000000011D0000-0x0000000001253000-memory.dmp

                        Filesize

                        524KB

                      • memory/1688-215-0x0000000076CB0000-0x0000000076DA1000-memory.dmp

                        Filesize

                        964KB

                      • memory/1688-214-0x0000000073C60000-0x0000000073E22000-memory.dmp

                        Filesize

                        1.8MB

                      • memory/1688-213-0x00000000009D0000-0x00000000009D1000-memory.dmp

                        Filesize

                        4KB

                      • memory/1688-212-0x00000000011D0000-0x0000000001253000-memory.dmp

                        Filesize

                        524KB

                      • memory/1688-282-0x00000000057C0000-0x0000000005826000-memory.dmp

                        Filesize

                        408KB

                      • memory/1688-211-0x00000000011D0000-0x0000000001253000-memory.dmp

                        Filesize

                        524KB

                      • memory/1688-209-0x0000000000D40000-0x0000000000D85000-memory.dmp

                        Filesize

                        276KB

                      • memory/1688-285-0x00000000061C0000-0x0000000006236000-memory.dmp

                        Filesize

                        472KB

                      • memory/1864-300-0x0000000000400000-0x00000000009FC000-memory.dmp

                        Filesize

                        6.0MB

                      • memory/1884-279-0x00000000050F0000-0x00000000055EE000-memory.dmp

                        Filesize

                        5.0MB

                      • memory/1884-274-0x0000000000890000-0x000000000089C000-memory.dmp

                        Filesize

                        48KB

                      • memory/1884-277-0x00000000050F0000-0x0000000005182000-memory.dmp

                        Filesize

                        584KB

                      • memory/1884-276-0x00000000055F0000-0x0000000005AEE000-memory.dmp

                        Filesize

                        5.0MB

                      • memory/1884-269-0x0000000000890000-0x000000000089C000-memory.dmp

                        Filesize

                        48KB

                      • memory/1884-278-0x00000000050C0000-0x00000000050CA000-memory.dmp

                        Filesize

                        40KB

                      • memory/1884-281-0x00000000050F0000-0x00000000055EE000-memory.dmp

                        Filesize

                        5.0MB

                      • memory/2424-160-0x00000000006A0000-0x00000000006A1000-memory.dmp

                        Filesize

                        4KB

                      • memory/2424-159-0x00000000006A0000-0x00000000006A1000-memory.dmp

                        Filesize

                        4KB

                      • memory/2424-157-0x0000000000790000-0x00000000007A5000-memory.dmp

                        Filesize

                        84KB

                      • memory/2444-129-0x000000000070A000-0x000000000071B000-memory.dmp

                        Filesize

                        68KB

                      • memory/2444-133-0x00000000001D0000-0x00000000001EC000-memory.dmp

                        Filesize

                        112KB

                      • memory/2444-135-0x0000000000400000-0x0000000000560000-memory.dmp

                        Filesize

                        1.4MB

                      • memory/2948-186-0x0000000002EB0000-0x0000000002FA1000-memory.dmp

                        Filesize

                        964KB

                      • memory/2948-191-0x0000000002EB0000-0x0000000002FA1000-memory.dmp

                        Filesize

                        964KB

                      • memory/3068-146-0x0000000002DA0000-0x0000000002DB6000-memory.dmp

                        Filesize

                        88KB

                      • memory/3068-119-0x00000000010C0000-0x00000000010D6000-memory.dmp

                        Filesize

                        88KB

                      • memory/3288-202-0x0000000000CF0000-0x0000000000D64000-memory.dmp

                        Filesize

                        464KB

                      • memory/3288-203-0x0000000000C80000-0x0000000000CEB000-memory.dmp

                        Filesize

                        428KB

                      • memory/3772-199-0x0000000000AC0000-0x0000000000B20000-memory.dmp

                        Filesize

                        384KB

                      • memory/4072-117-0x0000000000400000-0x0000000000409000-memory.dmp

                        Filesize

                        36KB